src/manager/service/ckm-service.cpp

   1 /*
   2  *  Copyright (c) 2000 - 2014 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *  Licensed under the Apache License, Version 2.0 (the "License");
   5  *  you may not use this file except in compliance with the License.
   6  *  You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License
  15  *
  16  *
  17  * @file        ckm-service.cpp
  18  * @author      Bartlomiej Grzelewski (b.grzelewski@samsung.com)
  19  * @version     1.0
  20  * @brief       CKM service implementation.
  21  */
  22 #include <service-thread.h>
  23 #include <generic-socket-manager.h>
  24 #include <connection-info.h>
  25 #include <message-buffer.h>
  26 #include <protocols.h>
  27
  28 #include <dpl/serialization.h>
  29 #include <dpl/log/log.h>
  30
  31 #include <ckm-service.h>
  32 #include <ckm-logic.h>
  33
  34 namespace {
  35 const CKM::InterfaceID SOCKET_ID_CONTROL = 0;
  36 const CKM::InterfaceID SOCKET_ID_STORAGE = 1;
  37 } // namespace anonymous
  38
  39 namespace CKM {
  40
  41 CKMService::CKMService()
  42   : m_logic(new CKMLogic)
  43 {}
  44
  45 CKMService::~CKMService() {
  46     delete m_logic;
  47 }
  48
  49 GenericSocketService::ServiceDescriptionVector CKMService::GetServiceDescription()
  50 {
  51     return ServiceDescriptionVector {
  52         {SERVICE_SOCKET_CKM_CONTROL, "key-manager::api-control", SOCKET_ID_CONTROL},
  53         {SERVICE_SOCKET_CKM_STORAGE, "key-manager::api-storage", SOCKET_ID_STORAGE}
  54     };
  55 }
  56
  57 void CKMService::accept(const AcceptEvent &event) {
  58     LogDebug("Accept event");
  59     auto &info = m_connectionInfoMap[event.connectionID.counter];
  60     info.interfaceID = event.interfaceID;
  61     info.credentials = event.credentials;
  62 }
  63
  64 void CKMService::write(const WriteEvent &event) {
  65     LogDebug("Write event (" << event.size << " bytes)");
  66 }
  67
  68 void CKMService::process(const ReadEvent &event) {
  69     LogDebug("Read event");
  70     auto &info = m_connectionInfoMap[event.connectionID.counter];
  71     info.buffer.Push(event.rawBuffer);
  72     while(processOne(event.connectionID, info));
  73 }
  74
  75 bool CKMService::processOne(
  76     const ConnectionID &conn,
  77     ConnectionInfo &info)
  78 {
  79     LogDebug ("process One");
  80     RawBuffer response;
  81
  82     Try {
  83         if (!info.buffer.Ready())
  84             return false;
  85
  86         if (info.interfaceID == SOCKET_ID_CONTROL)
  87             response = processControl(info.buffer);
  88         else
  89             response = processStorage(info.credentials, info.buffer);
  90
  91         m_serviceManager->Write(conn, response);
  92
  93         return true;
  94     } Catch (MessageBuffer::Exception::Base) {
  95         LogError("Broken protocol. Closing socket.");
  96     } Catch (Exception::BrokenProtocol) {
  97         LogError("Broken protocol. Closing socket.");
  98     } catch (const std::string &e) {
  99         LogError("String exception(" << e << "). Closing socket");
 100     } catch (...) {
 101         LogError("Unknown exception. Closing socket.");
 102     }
 103
 104     m_serviceManager->Close(conn);
 105     return false;
 106 }
 107
 108 RawBuffer CKMService::processControl(MessageBuffer &buffer) {
 109     int command;
 110     uid_t user;
 111     ControlCommand cc;
 112     Password newPass, oldPass;
 113     std::string smackLabel;
 114
 115     Deserialization::Deserialize(buffer, command);
 116
 117     LogDebug("Process control. Command: " << command);
 118
 119     cc = static_cast<ControlCommand>(command);
 120
 121     switch(cc) {
 122     case ControlCommand::UNLOCK_USER_KEY:
 123         Deserialization::Deserialize(buffer, user);
 124         Deserialization::Deserialize(buffer, newPass);
 125         return m_logic->unlockUserKey(user, newPass);
 126     case ControlCommand::LOCK_USER_KEY:
 127         Deserialization::Deserialize(buffer, user);
 128         return m_logic->lockUserKey(user);
 129     case ControlCommand::REMOVE_USER_DATA:
 130         Deserialization::Deserialize(buffer, user);
 131         return m_logic->removeUserData(user);
 132     case ControlCommand::CHANGE_USER_PASSWORD:
 133         Deserialization::Deserialize(buffer, user);
 134         Deserialization::Deserialize(buffer, oldPass);
 135         Deserialization::Deserialize(buffer, newPass);
 136         return m_logic->changeUserPassword(user, oldPass, newPass);
 137     case ControlCommand::RESET_USER_PASSWORD:
 138         Deserialization::Deserialize(buffer, user);
 139         Deserialization::Deserialize(buffer, newPass);
 140         return m_logic->resetUserPassword(user, newPass);
 141     case ControlCommand::REMOVE_APP_DATA:
 142         Deserialization::Deserialize(buffer, smackLabel);
 143         return m_logic->removeApplicationData(smackLabel);
 144     default:
 145         Throw(Exception::BrokenProtocol);
 146     }
 147 }
 148
 149 RawBuffer CKMService::processStorage(Credentials &cred, MessageBuffer &buffer){
 150     int command;
 151     int commandId;
 152     int tmpDataType;
 153     Alias alias;
 154     std::string user;
 155
 156     Deserialization::Deserialize(buffer, command);
 157     Deserialization::Deserialize(buffer, commandId);
 158
 159     // This is a workaround solution for locktype=None in Tizen 2.2.1
 160     // When locktype is None, lockscreen app doesn't interfere with unlocking process.
 161     // Therefor lockscreen app cannot notify unlock events to key-manager when locktype is None.
 162     // So, to unlock user data when lock type is None, key-manager always try to unlock user data with null password.
 163     // Even if the result is fail, it will be ignored.
 164     Password nullPassword("");
 165     m_logic->unlockUserKey(cred.uid, nullPassword);
 166
 167     LogDebug("Process storage. Command: " << command);
 168
 169     switch(static_cast<LogicCommand>(command)) {
 170         case LogicCommand::SAVE:
 171         {
 172             RawBuffer rawData;
 173             PolicySerializable policy;
 174             Deserialization::Deserialize(buffer, tmpDataType);
 175             Deserialization::Deserialize(buffer, alias);
 176             Deserialization::Deserialize(buffer, rawData);
 177             Deserialization::Deserialize(buffer, policy);
 178             return m_logic->saveData(
 179                 cred,
 180                 commandId,
 181                 static_cast<DBDataType>(tmpDataType),
 182                 alias,
 183                 rawData,
 184                 policy);
 185         }
 186         case LogicCommand::REMOVE:
 187         {
 188             Deserialization::Deserialize(buffer, tmpDataType);
 189             Deserialization::Deserialize(buffer, alias);
 190             return m_logic->removeData(
 191                 cred,
 192                 commandId,
 193                 static_cast<DBDataType>(tmpDataType),
 194                 alias);
 195         }
 196         case LogicCommand::GET:
 197         {
 198             Password password;
 199             Deserialization::Deserialize(buffer, tmpDataType);
 200             Deserialization::Deserialize(buffer, alias);
 201             Deserialization::Deserialize(buffer, password);
 202             return m_logic->getData(
 203                 cred,
 204                 commandId,
 205                 static_cast<DBDataType>(tmpDataType),
 206                 alias,
 207                 password);
 208         }
 209         case LogicCommand::GET_LIST:
 210         {
 211             Deserialization::Deserialize(buffer, tmpDataType);
 212             return m_logic->getDataList(
 213                 cred,
 214                 commandId,
 215                 static_cast<DBDataType>(tmpDataType));
 216         }
 217         case LogicCommand::CREATE_KEY_PAIR_RSA:
 218         case LogicCommand::CREATE_KEY_PAIR_DSA:
 219         case LogicCommand::CREATE_KEY_PAIR_ECDSA:
 220         {
 221             int additional_param;
 222             Alias privateKeyAlias;
 223             Alias publicKeyAlias;
 224             PolicySerializable policyPrivateKey;
 225             PolicySerializable policyPublicKey;
 226             Deserialization::Deserialize(buffer, additional_param);
 227             Deserialization::Deserialize(buffer, policyPrivateKey);
 228             Deserialization::Deserialize(buffer, policyPublicKey);
 229             Deserialization::Deserialize(buffer, privateKeyAlias);
 230             Deserialization::Deserialize(buffer, publicKeyAlias);
 231             return m_logic->createKeyPair(
 232                 cred,
 233                 static_cast<LogicCommand>(command),
 234                 commandId,
 235                 additional_param,
 236                 privateKeyAlias,
 237                 publicKeyAlias,
 238                 policyPrivateKey,
 239                 policyPublicKey);
 240         }
 241         case LogicCommand::GET_CHAIN_CERT:
 242         {
 243             RawBuffer certificate;
 244             RawBufferVector rawBufferVector;
 245             Deserialization::Deserialize(buffer, certificate);
 246             Deserialization::Deserialize(buffer, rawBufferVector);
 247             return m_logic->getCertificateChain(
 248                 cred,
 249                 commandId,
 250                 certificate,
 251                 rawBufferVector);
 252         }
 253         case LogicCommand::GET_CHAIN_ALIAS:
 254         {
 255             RawBuffer certificate;
 256             AliasVector aliasVector;
 257             Deserialization::Deserialize(buffer, certificate);
 258             Deserialization::Deserialize(buffer, aliasVector);
 259             return m_logic->getCertificateChain(
 260                 cred,
 261                 commandId,
 262                 certificate,
 263                 aliasVector);
 264         }
 265         case LogicCommand::CREATE_SIGNATURE:
 266         {
 267             Alias privateKeyAlias;
 268             Password password;        // password for private_key
 269             RawBuffer message;
 270             int padding, hash;
 271             Deserialization::Deserialize(buffer, privateKeyAlias);
 272             Deserialization::Deserialize(buffer, password);
 273             Deserialization::Deserialize(buffer, message);
 274             Deserialization::Deserialize(buffer, hash);
 275             Deserialization::Deserialize(buffer, padding);
 276
 277             return m_logic->createSignature(
 278                   cred,
 279                   commandId,
 280                   privateKeyAlias,
 281                   password,           // password for private_key
 282                   message,
 283                   static_cast<HashAlgorithm>(hash),
 284                   static_cast<RSAPaddingAlgorithm>(padding));
 285         }
 286         case LogicCommand::VERIFY_SIGNATURE:
 287         {
 288             Alias publicKeyOrCertAlias;
 289             Password password;           // password for public_key (optional)
 290             RawBuffer message;
 291             RawBuffer signature;
 292             //HashAlgorithm hash;
 293             //RSAPaddingAlgorithm padding;
 294             int padding, hash;
 295             Deserialization::Deserialize(buffer, publicKeyOrCertAlias);
 296             Deserialization::Deserialize(buffer, password);
 297             Deserialization::Deserialize(buffer, message);
 298             Deserialization::Deserialize(buffer, signature);
 299             Deserialization::Deserialize(buffer, hash);
 300             Deserialization::Deserialize(buffer, padding);
 301             return m_logic->verifySignature(
 302                 cred,
 303                 commandId,
 304                 publicKeyOrCertAlias,
 305                 password,           // password for public_key (optional)
 306                 message,
 307                 signature,
 308                 static_cast<const HashAlgorithm>(hash),
 309                 static_cast<const RSAPaddingAlgorithm>(padding));
 310         }
 311         default:
 312             Throw(Exception::BrokenProtocol);
 313     }
 314 }
 315
 316
 317 void CKMService::close(const CloseEvent &event) {
 318     LogDebug("Close event");
 319     m_connectionInfoMap.erase(event.connectionID.counter);
 320 }
 321
 322 } // namespace CKM
 323